Feed-pipe strainer.



No. 738,088. PATENTED SEPT. 1, 1903., S. M. VAUGLAIN & G. GREENOUGH.

FEED PIPE STRAINER.

APPLIGATION FILED APR. 29, 1903.

N0 MODEL.

are. 738,088.

UNTTnn STATES Patented September 1, 190s.

PATENT ()rricn.

FEED-PIPE STRAlNER.

SPECIFICATION forming part of Letters Patent No. 738,088, datedSeptember 1, 1903.

Application filed April 29, 1903. Serial No. 1 54,872. (No model.)

T0 at whom, it may concern:

Be it known that we, SAMUEL M. YAUCLAIN and GRAFTON Gnnnnouen, citizensof the United States, and residents of Philadelphia, Pennsvlvania,haveinvented certainlmprovements in Feed-Pipe Strainers, of which thefollowing is a specification.

Our invention relates particularlyto strain-- ers placed in thefeed-passage from a reservoir or other supply to a boiler, so as tostrain the water before it enters the boiler.

Our invention is especially applicable for use in the pipe leading fromthe water-tank of a locomotive to the boiler.

The main object of our invention is to so construct the strainer that itcan be made of few parts and that the strainer proper can be readilyremoved and replaced in the casing; and a further object of theinvention is to so construct the strainer that it will doubly strain thewater passing through the casing.

These objects we attain in the following manner, reference being had tothe accompanying drawings, in which- Figure 1 is a longitudinalsectional view of our improved strainer on the line 1 1, Fig. 2. Fig. 2is a plan view with the cap removed. Fig. 3 is a transverse sectionalview on the line 3 3, Fig. l.

A is the casing, having an inlet-passage a and an outlet-passage 0/ inthe present in- .stance, and coupled to the casing is an inletnozzle 0,to which the hose leading from the tender in the present instance isconnected.

0 is a pipe leading from the casing. This pipe has a threaded endscrewed into the threaded portion of the casing.

B is a cap having a screw-threaded flange 1). The thread of this flangemeshes with an internal thread in the casing.

Dis a strainer, made in cylindrical form and perforated, as shown. Thesize of the perforations may vary according to the use for which thestrainer is intended. This strainer is preferably of an even diameterthroughout and can be readily withdrawn from the easing after the cap Bis removed. The strainer is considerably less in diameter than theeasing, so that almost the entire surface of the strainer is utilized.

Vertical ribs c e are formed on each side of the casing and extend up tothe flange of the cap 13. These ribs form partitions separating one halfof the casing from the other, so that the water must pass through firstone side of the strainer then through the other before it can escape tothe boiler. Thus it is doubly strained.

ff are ribs which are formed in the bottom of the casing only and inconnection with the ribs 6 c hold the lower portion of the cylindricalstrainer in a central position. The flange 1) of the cap extends overthe upper end of the strainer. Consequently the strainer is held rigidlyin the casing when the cap is applied; but as soon as the cap is removedit can be readily taken out and cleaned.

As this strainer is often situated in a position not always accessible,it is desirable that the parts should be made so that the strainer canbe readily placed in position in the easing and that it will fit in thecasing only in one position. Therefore we incline the upper edges 6 ofthe ribs e and the upper edges f of the ribs f, and we also bevel theflange b, so that if the strainer when placed in position strikes thebeveled edges of the ribs e and f it will be guided by the beveledportions, so that it will assume a central position, and when the cap isapplied its beveled flange will draw the upper end of the strainer alsoin a central position.

It will be seen that our improved strainer consists only of three parts,one of which is the casing, the others the detachable strainer and thecap. There are few parts to handle, and the strainer can be placed inthe casing in only one way.

The great difficulty with several strainers on the market at the presenttime is the fact that they are complicated and that the strainerplatecan be placed in a wrong position in the casing, so that it will notstrain the water fiowing through it.

XVhile our invention is especially applicable to the straining ofwaterpassing from the water-tank to a locomotive-boiler, it can be usedfor straining any liquid for any purpose without departing from ourinvention.

e claim as our invention 1. The combination of a casin g having inletsand outlets opposite each other, a cylindrical strainer so mounted inthe casing that the liquid passing from the inlets to the outlets willbe doubly strained, substantially as described.

2. The combination of a casing,having inlet and outlet openings at eachside, an opening at one end, a cap closing said end, the easing beingclosed at the opposite end, a cylindrical strainer mounted between thetwo ends of the casing and so situated that it will doubly strain theliquid passing from the inlet to the outlet of the casing, substantiallyas described.

3. The combination of a casinghaving inlet and outlet passages, astrainer less in diameter than the internal diameter of the casing, anda rib on each side of the casing extending toward the strainer,substantially as described.

4. The combination of a casing having inlet and outlet passages, oneopposite the other, a cylindrical strainer mounted in the casing betweenthe two passageswertical ribs on the casing extending to the strainer,and a removable cap having a flange overlapping the end of thestrainer,substantially as described.

5. The combination of a casing havinginlet and outlet passages, acylindrical strainer mounted in the casing, the diameter of the strainerbeing less than the internal diameter of the casing, ribs extending thefull height of the casing and toward the strainer, short ribs in frontand back of the strainer at the base of the casing, a flanged capclosing an opening in the casing through which the strainer is inserted,the cap and ribs centering the strainer within the casing, substantiallyas described.

"ksaos's 6. The combination in a casinghaving inlet and outlet passagesopposite each other, a cylindrical strainer having its axis at rightangles to a line drawn through the inlet and outlet passages, internalribs on each side of the casing forming partitions separating the easinginto two sections, an opening for the removal of the strainer, and a capclosing the opening, the said strainer being so situated that it willdouble strain the water passing through the casing, substantially asdescribed.

7. The combination of acasing having inlet and outlet passages, and anopening, a cap for said opening, a cylindrical strainer mounted in thecasin g and removable through the opening, side ribs forming a partitionseparating the easing into two parts, short ribs in the base of thecasing, both the side ribs and short ribs having their upper surfacesbeveled, substantially as described.

8. The combination of a casing having inlet and outlet passages, anopening, a flanged cap closing said opening, side ribs on the casing andend ribs in the bottom of the casing, a cylindrical strainer held incentral position by the ribs at the lower end, and a flanged cap at theupper end, the flange of the cap and the ends of the ribs being beveled,substantially as and for the purpose set forth.

In testimony whereof we have signed our names to this specification inthe presence of two subscribing witnesses.

SAMUEL M. VAUOLAIN. GRAFTON GREENOUGH.

Vitnesses J AS. H. M. HAYES, R. H. SANFORD.

